1. The lowest level of organization is the _______.   tissue   cell   organism   organ   Hint Half-n-half Clue   2. _______ consist of enzymes, which help in digestion.   Ribosomes   Lysosomes   Plastids   Centrosomes   Half-n-half Clue   3. _______ are known as the 'power-houses of the cell'.   Secretory granules   Fat droplets   Mitochondria   Ribosomes   Half-n-half Clue   4. _______ are known as the 'sites of intracellular digestion'.   Ribosomes   Secretory granules   Mitochondria   Lysosomes   Half-n-half Clue   5. _______ are known as the 'sites of protein synthesis in the cell'.   Mitochondria   Ribosomes   Fat droplets   Secretory granules   Half-n-half Clue   6. The green color of leaves is due to the presence of the _______ pigment.   anthocyanin   xanthophyll   chlorophyll   carotene   Half-n-half Clue   7. A group of cells performing a specific function constitute a tissue.   True   False